199 lines
No EOL
6.5 KiB
C++
199 lines
No EOL
6.5 KiB
C++
#ifndef _ESP32_VIRTUAL_MATRIX_PANEL_I2S_DMA
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#define _ESP32_VIRTUAL_MATRIX_PANEL_I2S_DMA
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/*******************************************************************
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Class contributed by Brian Lough, and expanded by Faptastic.
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YouTube: https://www.youtube.com/brianlough
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Tindie: https://www.tindie.com/stores/brianlough/
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Twitter: https://twitter.com/witnessmenow
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*******************************************************************/
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#include "ESP32-HUB75-MatrixPanel-I2S-DMA.h"
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#include <Fonts/FreeSansBold12pt7b.h>
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struct VirtualCoords {
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int16_t x;
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int16_t y;
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};
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#ifdef USE_GFX_ROOT
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class VirtualMatrixPanel : public GFX
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#else
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class VirtualMatrixPanel : public Adafruit_GFX
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#endif
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{
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public:
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int16_t virtualResX;
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int16_t virtualResY;
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int16_t module_rows;
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int16_t module_cols;
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int16_t panelResX;
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int16_t panelResY;
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MatrixPanel_I2S_DMA *display;
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#ifdef USE_GFX_ROOT
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VirtualMatrixPanel(MatrixPanel_I2S_DMA &disp, int vmodule_rows, int vmodule_cols, int panelX, int panelY, bool serpentine_chain = true, bool top_down_chain = false)
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: GFX(vmodule_cols*panelX, vmodule_rows*panelY)
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#else
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VirtualMatrixPanel(MatrixPanel_I2S_DMA &disp, int vmodule_rows, int vmodule_cols, int panelX, int panelY, bool serpentine_chain = true, bool top_down_chain = false )
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: Adafruit_GFX(vmodule_cols*panelX, vmodule_rows*panelY)
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#endif
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{
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this->display = &disp;
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panelResX = panelX;
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panelResY = panelY;
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module_rows = vmodule_rows;
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module_cols = vmodule_cols;
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virtualResY = vmodule_rows*panelY;
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virtualResX = vmodule_cols*panelX;
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_s_chain_party = serpentine_chain; // serpentine, or 'S' chain?
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_chain_top_down= top_down_chain;
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}
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VirtualCoords getCoords(int16_t x, int16_t y);
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// equivalent methods of the matrix library so it can be just swapped out.
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virtual void drawPixel(int16_t x, int16_t y, uint16_t color);
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virtual void fillScreen(uint16_t color); // overwrite adafruit implementation
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void clearScreen() {
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fillScreen(0);
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}
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void drawPixelRGB565(int16_t x, int16_t y, uint16_t color);
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void drawPixelRGB888(int16_t x, int16_t y, uint8_t r, uint8_t g, uint8_t b);
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void drawPixelRGB24(int16_t x, int16_t y, RGB24 color);
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void drawIcon (int *ico, int16_t x, int16_t y, int16_t module_cols, int16_t module_rows);
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uint16_t color444(uint8_t r, uint8_t g, uint8_t b) {
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return display->color444(r, g, b);
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}
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uint16_t color565(uint8_t r, uint8_t g, uint8_t b) {
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return display->color565(r, g, b);
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}
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uint16_t color333(uint8_t r, uint8_t g, uint8_t b) {
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return display->color333(r, g, b);
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}
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void flipDMABuffer() { display->flipDMABuffer(); }
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void showDMABuffer() { display->showDMABuffer(); }
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void drawDisplayTest();
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private:
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VirtualCoords coords;
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bool _s_chain_party = true; // Are we chained? Ain't no party like a...
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bool _chain_top_down = false; // is the ESP at the top or bottom of the matrix of devices?
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}; // end Class header
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inline VirtualCoords VirtualMatrixPanel::getCoords(int16_t x, int16_t y) {
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coords.x = coords.y = 0;
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if (x < 0 || x > module_cols*panelResX || y < 0 || y > module_rows*panelResY ) {
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//Serial.printf("VirtualMatrixPanel::getCoords(): Invalid virtual display coordinate. x,y: %d, %d\r\n", x, y);
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return coords;
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}
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uint8_t row = (y / panelResY) + 1; //a non indexed 0 row number
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if( ( _s_chain_party && !_chain_top_down && (row % 2 == 0) ) // serpentine vertically stacked chain starting from bottom row (i.e. ESP closest to ground), upwards
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||
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( _s_chain_party && _chain_top_down && (row % 2 != 0) ) // serpentine vertically stacked chain starting from the sky downwards
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)
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{
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// First portion gets you to the correct offset for the row you need
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// Second portion inverts the x on the row
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coords.x = (y / panelResY) * (module_cols * panelResX) + (virtualResX - 1 - x);
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// inverts the y the row
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coords.y = panelResY - 1 - (y % panelResY);
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}
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else
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{
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coords.x = x + (y / panelResY) * (module_cols * panelResX) ;
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coords.y = y % panelResY;
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}
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// Reverse co-ordinates if panel chain from ESP starts from the TOP RIGHT
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if (_chain_top_down)
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{
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coords.x = (this->display->width()-1) - coords.x;
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coords.y = (this->display->height()-1) - coords.y;
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}
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//Serial.print("Mapping to x: "); Serial.print(coords.x, DEC); Serial.print(", y: "); Serial.println(coords.y, DEC);
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return coords;
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}
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inline void VirtualMatrixPanel::drawPixel(int16_t x, int16_t y, uint16_t color)
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{
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VirtualCoords coords = getCoords(x, y);
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this->display->drawPixel(coords.x, coords.y, color);
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}
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inline void VirtualMatrixPanel::fillScreen(uint16_t color) // adafruit virtual void override
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{
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// No need to map this.
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this->display->fillScreen(color);
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}
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inline void VirtualMatrixPanel::drawPixelRGB565(int16_t x, int16_t y, uint16_t color)
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{
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VirtualCoords coords = getCoords(x, y);
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this->display->drawPixelRGB565( coords.x, coords.y, color);
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}
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inline void VirtualMatrixPanel::drawPixelRGB888(int16_t x, int16_t y, uint8_t r, uint8_t g, uint8_t b)
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{
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VirtualCoords coords = getCoords(x, y);
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this->display->drawPixelRGB888( coords.x, coords.y, r, g, b);
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}
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inline void VirtualMatrixPanel::drawPixelRGB24(int16_t x, int16_t y, RGB24 color)
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{
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VirtualCoords coords = getCoords(x, y);
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this->display->drawPixelRGB24(coords.x, coords.y, color);
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}
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inline void VirtualMatrixPanel::drawDisplayTest()
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{
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this->display->setFont(&FreeSansBold12pt7b);
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this->display->setTextColor(this->display->color565(255, 255, 0));
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this->display->setTextSize(1);
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for ( int panel = 0; panel < module_cols*module_rows; panel++ ) {
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int top_left_x = (panel == 0) ? 0:(panel*panelResX);
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this->display->drawRect( top_left_x, 0, panelResX, panelResY, this->display->color565( 0, 255, 0));
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this->display->setCursor(panel*panelResX, panelResY-3);
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this->display->print((module_cols*module_rows)-panel);
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}
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}
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// need to recreate this one, as it wouldnt work to just map where it starts.
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inline void VirtualMatrixPanel::drawIcon (int *ico, int16_t x, int16_t y, int16_t module_cols, int16_t module_rows) {
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int i, j;
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for (i = 0; i < module_rows; i++) {
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for (j = 0; j < module_cols; j++) {
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// This is a call to this libraries version of drawPixel
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// which will map each pixel, which is what we want.
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drawPixelRGB565 (x + j, y + i, ico[i * module_cols + j]);
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}
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}
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}
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#endif |